Sanjay Patel
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962a8431ea
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[InstSimplify] allow folds for bool vector div/rem
llvm-svn: 297411
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2017-03-09 21:56:03 +00:00 |
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Sanjay Patel
|
7e56366204
|
[ConstantFold] vector div/rem with any zero element in divisor is undef
Follow-up for:
https://reviews.llvm.org/D30665
https://reviews.llvm.org/rL297390
llvm-svn: 297409
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2017-03-09 20:42:30 +00:00 |
|
Sanjay Patel
|
bb47616aef
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[InstSimplify] add tests for vector constant folding div/rem-by-0; NFC
llvm-svn: 297407
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2017-03-09 20:31:20 +00:00 |
|
Sanjay Patel
|
2b1f6f4b92
|
[InstSimplify] vector div/rem with any zero element in divisor is undef
This was suggested as a DAG simplification in the review for rL297026 :
http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20170306/435253.html
...but let's start with IR since we have actual docs for IR (LangRef).
Differential Revision:
https://reviews.llvm.org/D30665
llvm-svn: 297390
|
2017-03-09 16:20:52 +00:00 |
|
Sanjay Patel
|
3bbee79d9e
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[InstSimplify] add tests for vector div/rem with UB potential; NFC
llvm-svn: 297048
|
2017-03-06 18:45:39 +00:00 |
|
Sanjay Patel
|
c494239bd8
|
[InstSimplify] regenerate checks; NFC
llvm-svn: 297040
|
2017-03-06 18:13:01 +00:00 |
|
David Majnemer
|
63da0c238b
|
[InstSimplify] Optimize away udivs in the presence of range metadata
We know that udiv %V, C can be optimized away to 0 if %V is ult C.
llvm-svn: 291296
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2017-01-06 22:58:02 +00:00 |